Darn, it's out of stock
(for now)
OnePlus 6

OnePlus 6 256GB - Black - Unlocked - Dual-SIM

is currently unavailable.

Often bought together

OnePlus 6's customer reviews

3.9/5

16 verified reviews in the last 6 months.

  • P

    Paul D.

    4.4/5

    Reviewed in United Kingdom on 29 November 2023

    It all went smoothly except my ability to swap the data over from an old like for like phone. Old phone has a charging port issue only ( yes I defluffed it). Pity it has no trade in value but hey ho it was 2nd hand from an offspring upgrading anyway.
    OnePlus 6 128GB - Red - Unlocked - Dual-SIM

    Purchased on the 15 November 2023

  • T

    Tiina R.

    4.6/5

    Reviewed in Finland on 27 December 2023

    Tuli lahjaksi pojalle ja on toiminut toistaiseksi aivan moitteetta… siisti ja hyvä vaihtoehto uuden puhelimen tilalle! Lapsikin on ollut todella tyytyväinen ja ei ole huomannut että kyseeessä ei ole upo uusi.
    OnePlus 6 128GB - Black - Unlocked - Dual-SIM

    Purchased on the 12 December 2023

  • S

    Susana E.

    4.1/5

    Reviewed in Spain on 11 January 2024

    Hola, Pues tengo el movil bajo observación por qué le aparece de tanto en tanto una línea vertical en el lado izquierdo de la pantalla pero todaví ano he detectado si es siempre cuando tecleo o la zona del teclado izquierdo.
    OnePlus 6 128GB - Black - Unlocked - Dual-SIM

    Purchased on the 12 December 2023

  • F

    Florent F.

    4.8/5

    Reviewed in France on 4 January 2024

    Super téléphone, état proche du neuf (modèle d'expo ?) ... Malheureusement il est tombé à plat sur du carrelage avant que n'arrive sa coque de protection, résultat dos fissuré et l'écran ne s'allume plus :(
    OnePlus 6 64GB - Black - Unlocked - Dual-SIM

    Purchased on the 27 December 2023

  • M

    Marcha E.

    4/5

    Reviewed in Netherlands on 4 January 2024

    zeer tevreden over de leveringstermijn en de conditie van mijn oneplus 6 . het enige minpunt dat ik heb is dat ik mijn baterij zeer snel al terug moet opladen.
    OnePlus 6 128GB - Black - Unlocked - Dual-SIM

    Purchased on the 18 December 2023

  • B

    Bobson E.

    4.5/5

    Reviewed in United Kingdom on 3 January 2024

    Delivery and packaging impeccable. For a fair condition item, it is very clean. Great work, BackMarket.
    OnePlus 6 128GB - Black - Unlocked - Dual-SIM

    Purchased on the 29 December 2023

  • J

    José antónio G.

    3.5/5

    Reviewed in Portugal on 14 February 2024

    A bateria deste OnePlus 6 128GB - Branco - Desbloqueado, deixa muito a desejar. Dura pouco mais de um dia, sem muita utilização. Outros telemóvel do mesmo modelo têm uma autonomia de quase uma semana. Lamento, mas não fiquei satisfeito.
    OnePlus 6 128GB - White - Unlocked - Dual-SIM

    Purchased on the 26 January 2024

See all 16 reviews

Renewed vs. brand new
Here’s what you help prevent on average by choosing a renewed smartphone over a brand new one.

77.3 kg of carbon

That’s like driving an old banger from London to Edinburgh and back.

6.3 oz of e-waste

That’s around the weight of a baseball.

537.1 lbs of raw materials

That's like 20 dogs digging in your yard for a week.

77,000 litres of water

That's like running a faucet for 3 days

Everything you ever wanted to know about the OnePlus 6 256GB - Black - Unlocked - Dual-SIM

OnePlus 6 256 GB (Dual Sim) - Midnight Black - Unlocked

Our partners are electronics experts who test and verify that each product is 100% functional before it leaves the factory. This is the reason you benefit from a minimum 1-year warranty with the purchase of a refurbished device at Back Market.

OnePlus 6 256GB - Black - Unlocked - Dual-SIM

  • Colour : Black
  • Screen size (in) : 6.28
  • Storage : 256 GB
  • Memory : 8 GB
  • Model : OnePlus 6
  • Megapixels : 20
  • OS : Android
  • Resolution : 1080x2280
  • Network : 4G
  • SIM card : Unlocked
  • SD Card Slot : No
  • Manufacturer Ref : A6000
  • Year of Release : 2018
  • Series : OnePlus 6
  • Foldable : No
  • SIM card : Dual-SIM
  • Color (official name) : Midnight Black
  • Product type : Refurbished
  • Double SIM : Yes
  • SAR head : 1.33
  • Brand : OnePlus
  • Weight : 177 g

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  • Free 30-day returns
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  • 1-year minimum warranty